<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>模板引擎</title>
</head>
<body>
    <h1>好好学习</h1>

    <% let name = '张三' %> 

    <h3>
        <%= name %> 
    </h3>

    <% let flag = false %> 

    <% if(flag){ %> 
        <h6>这是true</h6>
    <% }else{ %> 
        <h5>这是 false</h5>
    <% } %> 
</body>
</html>